1. CF guidelines for patient services, evaluation and monitoring in CF centers;Cystic Fibrosis Foundation Committee;Am J Dis Child,1990
2. Patient Registry;Cystic Fibrosis Foundation,1996
3. Sweat testing: sample collection and quantitative analysis-approved guideline;National Committee for Clinical Laboratory Standards,1994
4. Sweat sodium or chloride;Gleeson;Clin Chem,1991
5. CF Center Directors Update No. 1,1993